简介:BaosteelTechnicalResearch,aquarterlyjournal,whichisissueddomesticallyandabroad,isrunandsponsoredbyBaosteelGroupCorporation.BaosteelTechnicalResearchmainlyreportstheachievementsintechnologicalinnovation,academicresearch,newproductdevelopmentandindustrialequipmentimprovementbyBaosteel.
简介:TherearethreetypesofshalegasresourcesinChina.Theresourcesarepresentinlargeamountsandarewidelydistributed.Marinefacies,transitionalfaciesandcontinentalfaciesresourceseachaccountforathird.Basedonresourcedistributions,therearemanywellspenetratedintotheSinian,Cambrian,Ordovieian,Silurian,Devonian,CarboniferousandPermianstrataoftheYangtzeplateanditsperiphery,theNorthChinaCratonandtheTarimBasin.ManyyearsofexplorationhaveindicatedthatthemarineSilurianLongmaxishalegasiswidelydistributedinsouthChinaandhasbeenindustrializedinitsproductionintheSiehuanbasin.TheshalegasfromtheCambrianNiutitangFormationandtheSinianDoushantuoFormationareimportantdiscoveriesinYichang,HubeiandZhenba,Shanxi.TherearealsoshalegasresourcesfoundwithintransitionalfaciesandcontinentalfaciesindifferentareasinChina.The"twoelementenrichmenttheory"hasbeensummarizedduringtheexplorationprocessofSilurianmarineshalegasintheSichuanBasin.Inaddition,horizontaldrillingandfracturingtechnologiesupto3500mindepthhavebeendeveloped.BasedontheunderstandingofshalegasaccumulationinacomplextectoniczoneoutsidetheSichnanbasin,apreliminarysummaryoftheformationofthe"conversefaultsynelinecontrolreservoir"and"paleoupliftcontrolreservoir"modelhasbeenconstructed.Thedominanttheoryof"Trinity"shalegasenrichmentandthehighyieldofthe"deepwaterLuPengxiangsedimentaryfaciesbelt,structuralpreservationconditionsandoverpressure"issummarized.Guidedbytheabovetheories.AnyelwellinGuizhouandEyangyelwellinHubeiweredrilled."Fourstorey"oilandshale"gasisfoundinthePermianQixiagroup,theSilurianShiniulanFormation,theLongmaxiFormationandtheOrdovicianBaotaFormationinAnyelwell.GoodshalegashasbeengoundintheCambrianNiutitangformationinianDoushantuoformationinEyangyelwell.Thispaperaimstosummarizeandreviewthemainprogress,theoreticaltech
简介:Thestudyofstructure,thermodynamicstate,equationofstate(EOS)andtransportpropertiesofwarmdensematter(WDM)hasbecomeoneofthekeyaspectsoflaboratoryastrophysics.Thisfieldhasdemonstrateditsimportancenotonlyconcerningtheinternalstructureofplanets,butalsootherastrophysicalbodiessuchasbrowndwarfs,crustsofoldstarsorwhitedwarfstars.Therehasbeenarapidincreaseininterestandactivityinthisfieldoverthelasttwodecadesowingtomanytechnologicaladvancesincludingnotonlythecommissioningofhighenergyopticallasersystems,zpinchesandX-rayfreeelectronlasers,butalsoshort-pulselaserfacilitiescapableofgenerationofnovelparticleandX-raysources.ManynewdiagnosticmethodshavebeendevelopedrecentlytostudyWDMinitsfullcomplexity.Evenultrafastnonequilibriumdynamicshasbeenaccessedforthefirsttimethankstosubpicosecondlaserpulsesachievedatnewfacilities.RecentyearssawanumberofmajordiscoverieswithdirectimplicationstoastrophysicssuchastheformationofdiamondatpressuresrelevanttointeriorsoffrozengiantplanetslikeNeptune,metallichydrogenunderconditionssuchasthosefoundinsideJupiter’sdynamoorformationoflonsdaleitecrystalsunderextremepressuresduringasteroidimpactsoncelestialbodies.Thispaperprovidesabroadreviewofthemostrecentexperimentalworkcarriedoutinthisfieldwithaspecialfocusonthemethodsused.AlltypicalschemesusedtoproduceWDMarediscussedindetail.MostofthediagnostictechniquesrecentlyestablishedtoprobeWDMarealsodescribed.Thispaperalsoprovidesanoverviewofthemostprominentexamplesofthesemethodsusedinexperiments.Eventhoughthemainemphasisofthepublicationisexperimentalworkfocusedonlaboratoryastrophysicsprimarilyatlaserfacilities,abriefoutlineofothermethodssuchasdynamiccompressionwithz-pinchesandstaticcompressionusingdiamondanvilcells(DAC)isalsoincluded.Somerelevanttheoretic
简介:Artificialintelligencehasbecomearesearchhotspotinmanyfields.Withtheadventoftheartificialintelligenceera,manycountrieshaveformulatedartificialintelligencepolicieswiththeaimofpromotingthedevelopmentandapplicationofartificialintelligence.Fromtheperspectiveofeducation,thearrivalofthiseraposessomechallengestotheexistenceandnewroleofteachers,mainlyintwoaspectsoftheteacher’sknowledgeauthorityroleisnotasbeforeandtheteacher’sextensiveeducationroleisnotenough.Inordertosolvetherolepredicamentfacedbyteachers,theyshouldidentifynewroleorientationsandbecomelifelonglearners,creativitycultivators,andemotionalcommunicators.
简介:Thetextpresentedispartofthestudy“Evaluationofpostgraduate(PG)educationinBrazil,Portugal,andSpain”andanalyzesthefiveBrazilianNationalPlansofPosgraduateStudies(inportuguese:PlanoNacionaldePós-Graduacao—PNPG),specificallyevaluatingtherelationshipamonginternationalization,integration,anddevelopmentregionalrelations,inBrazil’srelationswithitsneighborsinLatinAmericaandtheCaribbean.Usingresearchmethodologyfromthefieldofknowledgeofcomparativeeducation,itseekstoconstructthreeresearchaxesinordertoproposeananalyticalcategorizationonthefollowingepistemologicalactions:torelatethehistoricalcontextofeachBrazilianPNPGtotheconceptsofregionaldevelopmentandintegration,especiallywithrespecttonationalneedsfortheexpansionandrenewalofscienceandtechnology;tryingtoshowtheevolutionofPGcoursesandprograms(specificallymaster’sanddoctoralcourses);andalsoinIVandVPNPG,toanalyzethedirectionthattheinternationalizationobjectivehastakenandwhichregionalintegrationproposalsarepresentintheplanningdocuments.Preliminarily,wecanaffirmthat,althoughBrazilincorporatedthediscourseofregionalintegrationinitsnationalplans,especiallyintheso-called“national-developmentalist”decades,onlyfromtheendofthe20thcenturydidthethemeappearmoreobjectivelyandfocusedonrealactionsregardingevolutionofpost-graduation.
简介:OnthebasisofPlanckquantumhypothesisandEinsteinphotonquantumhypothesis,Zhongjizi(anewelementaryparticle)hypothesiswasproposedtorevealtheessenceofphoton,theoriginofmass,thequantumpropertyofgravitation,andthenatureofdarkmatter.TheresultsshowthatphotonisessentiallyasetofZhongjizi,lightiscomposedupofZhongjizi,thenatureoflightisparticleproperty,thepropertyoflightisdeterminedbythepropertyofZhongjizi,andthequantumpropertyoflightisessentiallyZhongjizipropertyoflight.Zhongjiziisthemostbasicparticleintheuniverseandtheoriginofmass,whichgivesmasstootherparticles.Zhongjiziisparticletransmittingthegravitation;gravitationtransmissionspeedisequaltothespeedoflight.ThequantumpropertyofgravitationisthepropertythatgravitationistransmittedbyZhongjizi.Theso-calleddarkmatterisessentiallyZhongjizifulloftheuniverseandtransmittinggravitation,soZhongjiziistheso-calleddarkmatterparticle.
简介:Thispaperselectstherecordsof7,412earthquakes,eachrecordedbymorethan10stationsinYunnanbetween2009and2014toacquirethetraveltimecurves.Meanwhile,forimprovingprecision,linearanalysis,reducedtraveltimecurveandintervalstabilityanalysisareconductedfocusingontherecordsof83earthquakeswithML≥3.0recordedeachby≥80%ofthestations,andbycombiningpredecessors??researchresults,theinitialcrustalvelocitymodelofthestudyareaisobtained.Byselecting200earthquakeswithM≥3.0occurringinYunnanbetween2010and2014,usingtheHyposatbatchlocationprocessingmethodtoiteratetheinitialvelocitymodel,andperformingfittingtoSwaveslayeredvelocitystructure,weobtainthecrustalvelocitymodelfortheYunnanregion,namely,the2015Yunnanmodel,with:vP1=6.01km/s,vP2=6.60km/s,vPn=7.89km/s,H1=20km,H2=21km,vS1=3.52km/s,vS2=3.86km/s,vSn=4.43km/s.AnalysisonearthquakerelocationsbasedonthenewmodelshowsthatmostearthquakesoccurringinYunnanareatadepthof10km-20kmoftheuppercrust.TheMarch10,2011MS5.8YingjiangandAugust3,2014MS6.5Ludianearthquakesarerelocated,andthefocaldepthsdeterminedwiththenewmodelarerespectivelyclosetotheprecisepositioningresultandhypocentraldistancetothestrongmotionstationsattheepicenters,indicatingthatthenewone-dimensionalvelocitymodelcanbetterreflecttheaveragevelocitystructureofthestudyarea.
简介:OnDecember15,2008,theInternationalResearchCenteronKarstundertheAuspicesofUNESCO(hereinafterreferredasIRCK)wasformallyestablishedinGuilin,China.ItisalsothefirstcategoryⅡcenterconcerninggeosciences.Sinceitsfoundation,ithasorganized11internationalsymposia,attractedover200foreignscientistsfrommorethan40countriesforacademicexchange,andsigned16internationalcooperationagreementswith14countries.Ithasplayedanactiveroleforinternationalexchange,setfirmfoundationforcooperativeprojects.
简介:Timereallyflies!IthasbeensixyearssinceIassumedthefoundingEditor-in-Chiefpositionforthenewjournal,PhotonicsResearch,inAugust2012,thenapprovedsevenfoundingAssociateEditors,openeditssubmissionsiteinDecember2012,andpublisheditsfirstissueinJune2013.NowPhotonicsResearchismuchmoremature,soitisalsotimeformeandthegroupoffoundingAssociateEditorstopassontheeditorialresponsibilitytoanewteam.